| 摘要 |
<p>PURPOSE:To make a resolver unnecessary and improve a resistance to vibration economically, by a method wherein the position of a rotor is operated from the current of a motor while the motor is controlled by an information on the position of the rotor and the commanding values of the amplitude and torque angle of the current. CONSTITUTION:A rotor position detecting unit 21 estimates the position theta of a rotor from a current signal detected by a current sensor 9a and inputs the estimated value into a processing unit 5. The processing unit 5 operates the change by time of the position theta of the rotor and converts it into the rotating speed (w) of a motor. The processing unit 4 determiner a torque commanding value T for the driving system of the motor 1 based on the rotating speed (w) of the motor and the operating amount A of an accelerator, then, inputs it into the processing unit 6. The processing unit 6 determines a current amplitude commanding valve ¦I¦ and a torque angle commanding value delta based on the torque commanding value T signal and the rotating speed (w) signal. The processing unit 7 generates current commanding signals IU, IV based on the position theta of the rotor, the current amplitude commanding value ¦I¦ and the torque angle commanding value delta.</p> |
